1 files changed, 244 insertions, 0 deletions
diff --git a/sca-java-2.x/tags/2.0.1-RC1/modules/common-xml/src/main/java/org/apache/tuscany/sca/common/xml/dom/impl/SAX2DOMAdapter.java b/sca-java-2.x/tags/2.0.1-RC1/modules/common-xml/src/main/java/org/apache/tuscany/sca/common/xml/dom/impl/SAX2DOMAdapter.java
new file mode 100644
index 0000000000..11d692c81e
--- /dev/null
+++ b/sca-java-2.x/tags/2.0.1-RC1/modules/common-xml/src/main/java/org/apache/tuscany/sca/common/xml/dom/impl/SAX2DOMAdapter.java
@@ -0,0 +1,244 @@
+/*
+ * Copyright 2001-2004 The Apache Software Foundation.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.tuscany.sca.common.xml.dom.impl;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Stack;
+
+import org.apache.tuscany.sca.common.xml.dom.DOMHelper;
+import org.apache.tuscany.sca.common.xml.dom.DOMHelper.NodeContentHandler;
+import org.apache.tuscany.sca.core.ExtensionPointRegistry;
+import org.apache.tuscany.sca.core.UtilityExtensionPoint;
+import org.w3c.dom.Comment;
+import org.w3c.dom.Document;
+import org.w3c.dom.Element;
+import org.w3c.dom.Node;
+import org.w3c.dom.ProcessingInstruction;
+import org.w3c.dom.Text;
+import org.xml.sax.Attributes;
+import org.xml.sax.Locator;
+import org.xml.sax.SAXException;
+
+/**
+ * SAX2DOM adapter
+ *
+ * @version $Rev$ $Date$
+ */
+public class SAX2DOMAdapter implements DOMHelper.NodeContentHandler {
+    public static final String EMPTYSTRING = "";
+    public static final String XML_PREFIX = "xml";
+    public static final String XMLNS_PREFIX = "xmlns";
+    public static final String XMLNS_STRING = "xmlns:";
+    public static final String XMLNS_URI = "http://www.w3.org/2000/xmlns/";
+
+    private Node root;
+
+    private Document document;
+
+    private Node nextSibling;
+
+    private Stack<Node> nodeStk = new Stack<Node>();
+
+    private List<String> namespaceDecls;
+
+    private Node lastSibling;
+
+    public SAX2DOMAdapter(ExtensionPointRegistry registry) {
+        UtilityExtensionPoint utilities = registry.getExtensionPoint(UtilityExtensionPoint.class);
+        DOMHelper domHelper = utilities.getUtility(DOMHelper.class);
+        this.document = domHelper.newDocument();
+        this.root = document;
+    }
+
+    public SAX2DOMAdapter(Node root, Node nextSibling) {
+        this.root = root;
+        if (root instanceof Document) {
+            this.document = (Document)root;
+        } else if (root != null) {
+            this.document = root.getOwnerDocument();
+        }
+
+        this.nextSibling = nextSibling;
+    }
+
+    public SAX2DOMAdapter(Node root) {
+        this(root, null);
+    }
+
+    public Node getNode() {
+        return root;
+    }
+
+    public void characters(char[] ch, int start, int length) {
+        final Node last = nodeStk.peek();
+
+        // No text nodes can be children of root (DOM006 exception)
+        if (last != document) {
+            final String text = new String(ch, start, length);
+            if (lastSibling != null && lastSibling.getNodeType() == Node.TEXT_NODE) {
+                ((Text)lastSibling).appendData(text);
+            } else if (last == root && nextSibling != null) {
+                lastSibling = last.insertBefore(document.createTextNode(text), nextSibling);
+            } else {
+                lastSibling = last.appendChild(document.createTextNode(text));
+            }
+
+        }
+    }
+
+    public void startDocument() {
+        nodeStk.push(root);
+    }
+
+    public void endDocument() {
+        nodeStk.pop();
+    }
+
+    public void startElement(String namespace, String localName, String qName, Attributes attrs) {
+        final Element tmp = document.createElementNS(namespace, qName);
+
+        // Add namespace declarations first
+        if (namespaceDecls != null) {
+            final int nDecls = namespaceDecls.size();
+            for (int i = 0; i < nDecls; i++) {
+                final String prefix = namespaceDecls.get(i++);
+
+                if (prefix == null || prefix.equals(EMPTYSTRING)) {
+                    tmp.setAttributeNS(XMLNS_URI, XMLNS_PREFIX, namespaceDecls.get(i));
+                } else {
+                    tmp.setAttributeNS(XMLNS_URI, XMLNS_STRING + prefix, namespaceDecls.get(i));
+                }
+            }
+            namespaceDecls.clear();
+        }
+
+        // Add attributes to element
+        final int nattrs = attrs.getLength();
+        for (int i = 0; i < nattrs; i++) {
+            if (attrs.getLocalName(i) == null) {
+                tmp.setAttribute(attrs.getQName(i), attrs.getValue(i));
+            } else {
+                tmp.setAttributeNS(attrs.getURI(i), attrs.getQName(i), attrs.getValue(i));
+            }
+        }
+
+        // Append this new node onto current stack node
+        Node last = nodeStk.peek();
+
+        // If the SAX2DOM is created with a non-null next sibling node,
+        // insert the result nodes before the next sibling under the root.
+        if (last == root && nextSibling != null) {
+            last.insertBefore(tmp, nextSibling);
+        } else {
+            last.appendChild(tmp);
+        }
+
+        // Push this node onto stack
+        nodeStk.push(tmp);
+        lastSibling = null;
+    }
+
+    public void endElement(String namespace, String localName, String qName) {
+        nodeStk.pop();
+        lastSibling = null;
+    }
+
+    public void startPrefixMapping(String prefix, String uri) {
+        if (namespaceDecls == null) {
+            namespaceDecls = new ArrayList<String>(2);
+        }
+        namespaceDecls.add(prefix);
+        namespaceDecls.add(uri);
+    }
+
+    public void endPrefixMapping(String prefix) {
+        // do nothing
+    }
+
+    /**
+     * This class is only used internally so this method should never be called.
+     */
+    public void ignorableWhitespace(char[] ch, int start, int length) {
+    }
+
+    /**
+     * adds processing instruction node to DOM.
+     */
+    public void processingInstruction(String target, String data) {
+        final Node last = nodeStk.peek();
+        ProcessingInstruction pi = document.createProcessingInstruction(target, data);
+        if (pi != null) {
+            if (last == root && nextSibling != null) {
+                last.insertBefore(pi, nextSibling);
+            } else {
+                last.appendChild(pi);
+            }
+
+            lastSibling = pi;
+        }
+    }
+
+    /**
+     * This class is only used internally so this method should never be called.
+     */
+    public void setDocumentLocator(Locator locator) {
+    }
+
+    /**
+     * This class is only used internally so this method should never be called.
+     */
+    public void skippedEntity(String name) {
+    }
+
+    /**
+     * Lexical Handler method to create comment node in DOM tree.
+     */
+    public void comment(char[] ch, int start, int length) {
+        final Node last = nodeStk.peek();
+        Comment comment = document.createComment(new String(ch, start, length));
+        if (comment != null) {
+            if (last == root && nextSibling != null) {
+                last.insertBefore(comment, nextSibling);
+            } else {
+                last.appendChild(comment);
+            }
+
+            lastSibling = comment;
+        }
+    }
+
+    // Lexical Handler methods- not implemented
+    public void startCDATA() {
+    }
+
+    public void endCDATA() {
+    }
+
+    public void startEntity(java.lang.String name) {
+    }
+
+    public void endDTD() {
+    }
+
+    public void endEntity(String name) {
+    }
+
+    public void startDTD(String name, String publicId, String systemId) throws SAXException {
+    }
+
+}